Landslides triggered by earthquakes are very important in earthquake risk assessment. To have a better understanding of their relation with characteristics of earthquakes and geomorphologic/geologic features of an area, the first step is to document size and geographic distribution of the landslides. The 20 June 1990 Rudbar earthquake (Mw 7.3) occurred in a mountainous area and is very well known for its destructive landslides. There is not yet a detail study on mapping of all the Rudbar earthquake induced landslides. In this research we study distribution of these landslides within the isoseismal area with a MMI larger or equal than eight. We use Optical Image Correlation derived deformation maps, Google Earth imagery, as well as pre- and post-earthquake SPOT satellite images and aerial photos. All the used methods can detect fast-sliding earthquake-induced landslides. We have mapped 60 and 65 fast-sliding landslides by investigating Google Earth imagery/aerial photos and OIC displacement maps, respectively. The greatest fast-sliding landslides are concentrated around Baklor segment (~25-35 km distance west of the epicenter) and are dominantly due to re-sliding of the previous landslides. Some of the fast-sliding landslides created natural dams along their nearby stream channels. Slow-sliding landslides, with maximum displacement up to three meters, are only deduced from OIC deformation map.